What powers derefter.nl?
Last seen Oct 2026 · 31 technologies across 14 categories
CDN
Cloudflare
since Mar 2023
CMS
Databases
MySQL
since Mar 2023
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Mar 2023
RSS
since Mar 2023
Page builders
wpBakery
since Mar 2023
Performance
Priority Hints
since Sep 2023
Programming languages
Security
Cloudflare Bot Management
since Mar 2023
Really Simple SSL & Security
since Apr 2024
reCAPTCHA
since Mar 2023
UI frameworks
Animate.css
since Mar 2023
ZURB Foundation
since Mar 2023
Web servers
Apache HTTP Server
since Mar 2023
WordPress plugins
WordPress Super Cache
since Mar 2023
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.71 / 10 · ranked #2,152,891 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 3.5 MB · 48 requests
- WordPress theme: revolution · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on FUNDAMENTS-AS (31.200.213.203)
- DNS: openprovider.nl
- Email: no MX record returned
- Email security: DNSSEC signed, CAA
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 1,419,277, 2 hosts
DNS records as swept Oct 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Feb 2026